My mom is suffering a head pain in the back of her head?
Hello, my mother (age 45) is suffering a head pain in the back of her head. mainly pain occurs at night before sleep but sometimes in the day too. she says the pain occurs in the left side vein in the back of her head. the pain started about 10-15 days ago. but now the pain level is high sometime. her blood pressure is normal. what possibly it could be..? please help us.